Alarm apparatus



Nov. 13, 1928. 1,691,378 I s. E. CHENEY ALARM APPARATUS 'Filed Apr-1112, 1927 and illustrating hoiv the invention -isadapted Patented Nov.13, 19,28*.

UNITED STATES;

y SARAH E. CHENEY', or Los ANGELE'Sj CALI'FOBNI;

' ALARM APrARATUs.

Appiieation inea April 12,- i927. serial No. 183,137.l

This invention.' relates to an alarm device' and the general object otthe invention isto provide a simple device of this kind which can bereadily installed Without the use of special tools and Withoutvnecessitating the" The invention consists oiithe novel parts andcombination of parts to be described hereinaften' all oli whichcontribute to produce an efcient alarinapparatus.

A preferredembodiment oi the invention`r isdescribed` in the following.specilicatiomV While the broad scope otthe invention' is pointed outinthe appei'ided'claims.

In the drawings: Y Y Figure-lisa front elevation showing -aportion'ofadoor and-a portion of the casem`e iit,.Y and illustrating` my alarm'apparatusapplied' to the same.

.Trigure 2 is a vievA similar to Figure l'lout4 illustrating oneofthelovver corners of afsash,

for use With such a sash.

Figure 3 'is an elevationshoivinga portion oi" the frame of' thealarindevice ory clock,k and illustratingfdetailsof the preferred con.struction of an4 actuatingl member-Which Il use to release the-alarm.Thisv view isv upon an enlarged scale.

Figure l is a vertical section 'takenr about on the line te-t, ofFigurev 3. This vevv'isV upon an enlarged scale.

ln practicing this invention7 I' employ 'an alarm device Which 'restsupon the lloor- For this purpo'se'I may employ an alarm device of anydesired construction provided with a movable-member or actuating member;the movement'o'f which releases the alarm. According to my invention,vlfconnect'tliis movable' member or actuating member with a" part whichWill be moved if a personattempt-'s to move a partbarring entrance to aroom, torrezrarnple,k if itis attempted to' open the door or open a sashwhich Will give access' tothe room. Q u Y u Inthe embodiment of theinvention dis# closed, provide an alarm device 1 which; may be in theform of. an alarm vcloclrof any' common type. TheA alarm' clockillustratedt is of a type having aj substantially square casing 2. Inits interior the-clock'is'provid'- ed with an alarm mechanismincludin'ga bell hammer B'for striking' againstthe'side. of a bell* 4.This bell hammer hasV a' handle or arm 5- ivh'icli, :when released; Lisactuated' by `an alarm v spring and other parts not illustiated' butvwel known to constructors of alarm mechanisms. The setting off of thealarm is controlledv by means ofv a detent 6 infthe' form of a'flat bar,one end of Wliic'h is fastened atthe pointrandthe other end of 4iv'hichis bent laterally Atoform af'fi'ngerS Whichprojects lintothepath-'of thearm 5 Vof the hammer and normally-prevents the" hammer frombeingiactuated. At an intermediate point onits length,y this detentbar' 6 hasassociated Wit-Hit a" gear 9 which is? rotated'by the clock' train; thehub ofsaid gear being provided With'a collar 10 having a notch 11, see`Figurer 4; VV'henv'tlii's` notch 11 arrives at a certainpointfitperinits ashift ingtmovement'of the' collarlO'and tfi'egeai-Wheel 9 carryingwith it the outerI portion of the detent bar 6 to Whichit is connected;A In" According toI my*1 invention, Ii provide'V meansvforactiiating.the detent 6- if the door orv'sashnea'r theaflarin'is'opened. For this purpose I provide anactuating-member' 12Which'is guided td'move downwardly and` upwardlythrouglraslot 13 in theupper Wall laof'thecasing'2. This actuating iri'e'mber"v is in the formvof aflat barpro'v'idetl ivithl means for guidingfiton the' clockfra'me15.

For' this purposeg-theb'ellf may be provided vvithtivo longitudinalslots 16' Whiclirec'eive f guide screwsvl 17 secured in!` the'fiame.

' Near' theY lover end 'fof the' actuating inem# ber 12, it is providedwith a'lat'eralof-se't: or cai'n'portin 18. This cam 'portion :fis dis@yposed slightly'` below l and 'near the "'inne'r side face ofthedeten'tbar 6; and thefbar 12 is so located that when it is pulled up,this 'cam' portion 18 Willl push the vdetentbai" G to one side andthereby release-*the a`rm`5v from theY detentvinger 8. It should be'understood; liowever, that the actiat'ingfmeinber' 12 is not attached'totlfe detfntbar 6 but simply opereV ,ates' to slio'v'e`A it "to" oneside; lthat isto say; o

it Shoves itto one side inthe same direction that the detent shoved bythe regular clock mechanismwhen the alarm operates. Hence thepresenceo'llv the actuating member12 does not in any way interfere withthe regular user the door19 is opened, I provide means con nected withthe door in such a way as to pull the a: tuating member. 12 upwardly. Inthe present instance, I'employ a` bracket 2O whichmaybedetachably'secured to the door knob 21m a vertical position, sothat if this door knob `is rotated in either direction to open the door,thegarm ofthe bracket 2() will swing upwardly and raise the bar 12. Inother words, one end of the bracket is utilizedto afctuate the alarm.lInthepresent instance, the bracket consists of vtwo ]aws.22 connectedtogether at i a pivot point 23, and provided with a clamping screw 24Vorclamping them together. A set screw 25may be providedior securingthe'bracket iirmly to the shank ofthe knob.

The-end of the bracket 22 is attached by. a suitable connection 26 tothe upperend of the slidefbar 12. F or this purpose, the up 3er end of ithe Y slide bar; may beV provided with a small opening27. The connection26 is pret erably in the form cfa light chain having a loop 28' at itsvupper end'cooperating with an adjustable clamp 2,9 to enable the lengthof' the chain to be adjusted.

lVith this arrangement itfwillbe evident 'thatV the clock which isfreely movable can be' set on the floor 30 but unattached tothe floorunder the knob 'and connected to itzas inring when released, that istosay, it can not be stopped until it has run down'.

I prefer to construct thel actuating member 12 in such away that it canbe shoved in to l/Vhen an. alarm clock is used formy purpose i stop thealarm. In other words, I provide Y baru12. is pulledupwardly, the springBla detent for holding the actuating member 12 in the -raised positionto which it is moved by the pull on the chain 26. For this purpose, Iprovide the side of the bar'12 with a smallv leal2 spring` 34,whichcarries a smallpin'l at its end." ThisV pin projectsl through theupper slot 1G. vand inthe Aposition of thc bar shown in Figure 4l, Vtheend ot' this pin restsy aoainstthe side l'ace of the clock frame 15.IVhen' the hook 86 attaching the chain to thev moves the pin toward theright so that it rests upon the upper edge; 37'V of the-clock Jframe. Inthis way, the pin supports the bar in its elevated position. However,by' shoving down on the bar 12, it can be returned to its depressedposition. AIn order to facilitate this movement, the frame 15 may beprovided with a bevel face' 38 atv its upper edge 37. `This bevel raceacts as a'cam on the adjacent Yend of. the pinB and 'slioves the pintoward the lei't. Of course, when the pin 35 is lholding the bar 12elevated, the pin is projecting across the extreme upper edge of theYclock.`V

irame, but the spring 34 is sulliciently flexible' to permit the pintorelease itself when Vt-he bar 12is shoved downwardly. f, Y I l v In,constructing the alarm device it should,

of course, be constructed so thatthe weight of the alarm device will'maintain its casing upon the floor when the movable'member 12 is pulledupwardly. f

Itis understood that the embodiment of the invention describedlierein isonly one .of the many embodiments this invention may take, and I do notwish to be limited inthe practice ofthe invention, nor in the claims, tothe particular embodiment set forth.v

What I claim is: v

1."In an alarm apparatus for giving an alarm upon the moving oi: a partbarring entrance to a room, the combination of a freely movablealarmdevice Vresting upon, vbut unattached to, the oor'below the saidpart,

a movable member associated with the alarmr device for releasing thesame, and an adjustableV connection between the said movable member andthev said part or sash and connecting the same, operating to move themovablev member when the said part is moved, and thereby pull up on saidmovable. meinberto release the alarm. L iy Y' 2. In an alarm apparatusto give an alarm upon the movement of apart barring entrance to a room,thecombination of a freely movable alarm device constructedy to rest yupon, but unattaclied to,` theloor'below the said part,`said alarmdevice having a casing with alarm mechanism withinY the same,a

movable member guided to slide upwardly. through the upper wall of saidcasing .andy

associated with the ala-rm mechanism for" releasing thesame, and anvadjustable con-.

nection between the said movablefmember y. and the said part',operatingto move the v movable member when the said partis moved, andpull the alarm.

Y 3. In an alarm apparatus to givean alarm within the same, having adeteiit operating when moved aside to release the alarmmech- 4anism andpive the alarm a movable member guided through the upper side ofthe'casing the movable member up torelease and having a. casing with alarmVmechanism.`

and having means for moving the detent to one side to release the alarmmechanism, and an adjustable connection hanging from the said part andConnected to the said movable member operating to move the movable mem-Y ber When the said part is moved.

e. in an alarm apparatus to give an alarm upon the opening of a. door,the Combination of an alarm clock resting upon the floor and having aCasing With alarm mechanism having a detent operating when moved asideto release the mechanism and give the alarm, a

move the movable member When the door 20 knob is rotated.

Signed at Los Angeles this 5th day of April, 1927. i

SARAH E. CHENEY.

